Combined heater and radiator



Oct. 21, 1930. I I 'r. E. MURRAY 1,779,139

COMBINED HEATER AND RADIATOR Filed June '7, 1925 I5 Sheets-Sheet 1 Emma Oct. 21, 1930.

T. E. MURRAY COMBINED HEATER AND RADIATOR 3 Sheejc-Sheet" 2 Filed June 7, 1925 llllll'l'llllllvll'l' WM 3% m 5 Wm nw Oct. 21, 1930. I T. E. MURRAY COMBINED HEATER AND RADIIATOR Filed June '7, 1923 3 Sheets$heet 3 I avwentoz THOMAS E MURRA K Patented Oct. 21, 1930 t "memsymn v,'ornmonm mw YORK; meme HADLEY munmmmmb I k gateway;engumnmnnr; MURRAY, exigencies or sAIb'rfidimsE. mumm DECEASED, 'ASSIGNORS To 1 METROPOLITAN aemmnme com-Pam; A oomm- Tron orimw YORK" eommap ummer-Iran f1) m'ron Animation fled June 1,

i lv Theinvehtioirrelates to. heating appliances and; particularly to articles such a-sqhousvholdradiators and heaters. 1 V V The invention contemplates the production of an impioiledhouseholdheater or boiler 'madepreferably ofsheet or plate metal bent to a suitable shape; s,o. as toform a hollow structurethrough which a fluid such as steam orehot waterjcan befoirculatedr Y ,10 The invention is illustrated, in the accom- Ipanying drawings in which Fig. l is a per- .spective View, of. a heater or boiler showing oneembodiment; y ;..Fig. 2 is a transverse section on 22 of .,..Fig. 3 :is a horizontal section-.on 33 of Fig. Lisa detail-section an 44 of Fig. 2;

Figs. 5, 6,)? v and 8, illustrate a modifica- 'tio'nof theheatershown-in Figs. 1 and 2;

,gFig. ;-9;show's a gas fired vheater embodying theinventi n. e u .;Refferring in detail, first ,to-Figs. Ito/1 vof the-drawings, the; principal I water or; steam -:heatingJQ1ement ofthe hea-ter or'boiler 12 'is suppqi ted on thefi're boxllwhich is formed.

cwrth ihollow ,walls so as topermit water, to be, circulatedl therethrough. p i I The fire box is preferably, thoughnotnecjes- 16 providing greater radiating surface and .stifi'ness and a smooth inner -wall;18 spaced fort example as in Fig. 4 to leave a hollow space 201101 circulation of the water used -1 'v in theyheater. The fire box is provided with h u ualgra ba 22, ash -P m0mbu t1 chamber'orfire-pot 26anda frame 28 formed with suitable door; openings forjthe-ash"pit@ 7 I I I l Z usedeitherasm radiator in ,heating systems iandifiredoorsnot-shown; I, I eThexwater orsteam'heatingelementlO IS I hBld JQIl positioned 'onthe firebox 14 by a band -3Qi-v\ahichfmay follow the contour ofthe corrugations 16 box-v v a :The heating element 1 is formed pref- 1 .rably by'bending. orcorrlugating a sheet met- }:al plate or ;plates;to jfor n a cellular.- structure such as shown in Figs 3; comprising a series o he Ce t v l jo t ifi of hollow; ribs 32 each including laterallyex- .tencling walls 3 united-integrally. at36 and sarily,, formed with a corrugated outerwall b 192 3. Serial no. 643941.

38; near theirlinner. and outer ends respectively. Thus an extended: radiating surface is, provided vand a stiif structure isfformedf though' the sheet-metal maybe 'comparatively thin. 1

' When the water or steam heating elenient is subjected to internal pressure the tendeno of such pressureislto distortzorflex the sheet 7 metal walls which it is understood are oat-co n;

parative'ly light gauge stock. To counteract the efiect'of such pressureg'l providebraoes 'between thefribs on the outside of the structure and also certain braces or meinforee- ,ments Within the structure. 1 The braees withr in the structure are designed; to prevent either aninward or outward distortion ofthe struc-- ture due ,eithe'rto pressure or, vacuum, thatis tosay, thereinforcement which I; provide will prevent either collapse or outward buckling. vTo prevent undue expansion orgcollapse of the hollow'structure asabove referred to, I

secure Z bars to the opposed walls 40,

wallsffl) of the structure, it'is togbe-understood that when;neces'sary' such reinforcements can u in the mbe o med by h llow ribs. l v

H GI .also juse in some instances a reetailgular solid bar 74 for reinforcing the structure longitudinally and this, bar is v also useful,

wh n s b g't insu el e t pa t 'ar abr w in the prop s ae d' afi n h p- The heating element above described can be oras partof a heater orboiler itself. 2 shows. the invention applied to a household heater, the, hollow structure bei connected withgsuitable water inlet 76 an, [hot water a firebox 14 arranged for, a circ lation of above de erih bl vw o w fire b ng eonnectedwith t he hollow structure a;

these bars being assembledso that ,their flanges 72 overlap. As thus arranged;itds app r t a 1 c ba P t. any. epp sei l mov m f th PPQsQd Wa l .40' ei her inw ly 0r u ar y-.1 Wh hav only illustrated Z ba'rs 70 between the opposed outlet 8 coniir icted;inv the usual manner to the water. supply and radiators in a hot water heating-system. This particular figure shows water between the walls 16 and .18 thereof as suitable pipe 80, fittings 82 and 84 and pipe 86. A suitable blow-off valve 88 is provided. Another pipe 90 connects the upper portion of the hollow fire box with an intermediate portion of the hollow structure 10 to provide for a suitable circulation of water between the two. This heater may be designed for use as either a steam or hot water unit.

Figs. 5 to 7 illustrate a heater similar to that shown in Figs. 1 to 4 except that the water or steam heating element 10 is supported by a fire box not adapted to have water circulated therethrough. The fire box of this heater comprises an outer corrugated wall 98 and inner wall 100. The walls 98 and 100 carry at the top an intermediate member 102 having an inclined dome 104 and a base portion 106 for supporting the hollow unit 10. This intermediate member is provided with a marginal flange 108 serving to hold the hollow structure 10 in place. The fire box is provided with a suitable grate 22 and the usual door frames and other accessories as shown.

Fig. 8 illustrates a heater similar in design to that shown in Fig. 1 but having a comparatively larger fire box 14 suitable for fuels of great bulk.

Fig. 9 illustrates the heater 10 which is arranged to be heated by a gas burner 110 located Within a base or casing 112, the heater being provided with a suitable water inlet pipe 114 and outlet pipe 116. A cap 118 fits over the top of the structure 10 and the design is such that the hot waste gases escape through a stack 120 having a suitable damper 122 therein.

The structure can be readily formed by bending a sheet or sheets of metal so as to form a multiple hollow ribbed or cellular structure 10. The ends of the walls of the hollow ribs can be readily pressed and welded together electrically or otherwise or soldered or the joint may be made by an electrolytic deposit and other port-ions of the structure can be similarly united to make the entire unit fluid-tight.

This type of heater structure is an improvement over those made by casting and the passages or cells of the structure can be made of much smaller sectional area so that the water or steam therein can be distributed in thin layers over an extensive multiple area. The walls can be made much thinner of sheet metal than it is possible to make them by casting, and the transfer of heat through such a thin sheet metal Wall is much more rapid than through a thicker cast wall. This feature is of particular importance in heaters as they must frequently be brought from a comparatively cold to a hot state, it being the practice in operating household heating systems to bank the fires at night and allow the system to cool down considerably. With thin walled heaters herein described, the heat is made available much more quickly when the fires are again opened up to heat the system.

WVhat I claim is 1. A combined heaterand radiator comprising a sheet metal vessel for water to be heated, the wall of which is in the form of a series of hollow ribs, the hollows of which communicate with the central portion of the vessel, and partitions across the spaces between the outsides of said ribs forming flues for heating gases to heat the water in said vessel, means for generating heating gases and supplying said generated heating gases to said flues, said partitions being located at intermediate points in the width. of said spaces and the partitions nearest the outer ends of said ribs having their outer faces exposed to the surrounding atmosphere and so disposed as to leave a substantial portion of the outer ends of the ribs exposed to the surrounding atmosphere.

I 2. Apparatus of the type described, which comprises a hollow water container structure having Vertical hollow ribs extending laterally from a common central chamber and spaced to form channels open at one edge to the atmosphere, vertical walls in said channels to form heating fiues in said channels and to leave the outer edges of the channels open to the atmosphere and means to burn a fuel and to supply the hot products of combustion directly to said heating flues.

3. Apparatus ofthe type described, which comprises a hollow structure having vertical hollow ribs extending laterally from a common central water chamber and spaced to form channels open at one edge to the atmosphere, vertical walls in said channels to form heating fiues in said channels and toleave the outer edges of the channels open to the atmosphere and a furnace below said water chamber having a fire box opening directly into said flues.

4. A combined heater and radiator comprising a sheet metal vessel for water to be heated, the wall of said vessel being in the form of a series of spaced hollow ribs, the interiors of which communicate with the central portion of the vessel, partition walls in the spaces between said ribs forming passages for heating gases through the innermost portions only of said spaces between said ribs to heat the water in the vessel, the

outer portions of the spaces between said ribs being open to radiate heat to the surrounding atmosphere, and meansfor burn- 111g fuel and supplying the products of combustion to said heating gas passages.

5. A combined heater and radiator comprising a sheetmetal vessel for Water to be heated, thewall of said vessel being formed of a series of hollow ribs the hollows'of which communicate with the central portion of the vessel and having spaces between said I ribs, lengthwise partition walls in the s aces between said ribs forming passages for eatmg gases through the internal portions only of said spacesto heat the water in the vessel,

THOMAS E. MURRAY. 

